George l



(No Model.)

G. L. BARNEY. COMBINATION LOGK.

Patented Sept. 6, 1892.

UNITED STATES PATENT OFFICE.

GEORGE L. BARNEY, OF INDIANAPOLIS, INDIANA.

COMBINATION-LOCK.

SPECIFICATION forming part of Letters Patent No. 482,222, datedSeptember 6, 1892.

' Applioationfiled April 29,1892. Serial ITO-431,175- (No model.)

To aZZ whom it may concern:

Be it known that I, GEORGE L. BARNEY, a

citizen of the United States, residing at Inadapted for variouspurposes, they are in-.

tended more especially to provide a suitable and practicalcombination-lock which shall be adapted for use on drawers of desks andother devices; and the object is to furnish a combination-lock which canbe readily applied to the face of the drawer or other moving portion,and at the same time which shall be simple and cheap in construction,not liable to get out of order, and be safe against ordinary attemptsat'unlocking by unauthorized parties.

To these ends my invention consists in the various features ofconstruction, arrangement, and mode of operation, substantially ashereinafter more particularly set forth.

Referring to the accompanying drawings, Figure 1 shows the face of adrawer or similar article having a lock applied thereto. Fig. 2 is anenlarged plan view of the edge of the drawer with the lock applied. Fig.3 is a plan view of the rear of the lock, showing the op-.

erative mechanism; and. Fig. 4 is a detail perspective view showing thebolt and slideplate.

In the practical use of combination or per mutation looks as applied todrawers of hureaus, desks, and the like it has been found inconvenientto properly attach the co mbination-lock so that it will be securelyheld, and, further, so that they will be adapted tobe applied to drawershaving walls or faces of various thicknesses.

One of the primary objects of my invention is to provide a lock whichcan be readily applied to the drawer without the necessity of specialtools, and when applied will be securely held in position,so that itcannot be readily forced, and, further, so that it will fit drawer-facesof various thicknesses.

In the drawings, A represents the front of a drawer or similar devicehaving the lock applied thereto. The lock consists, essentially, of afaceplate B, which is shown as rectangular, having beveled edges andcarrying in the present instance two dials C,which are arranged tocontrol the combination or permutation disks D,v which are shown asmounted upon standards connected to the dials and secured thereto bypins cl, so that the disks will rotate with the dials. Various meansmaybe used for securing the disk to the dials, and I preferably make useof thearrangement shown in my prior patent, No. 471,262, dated March 22,1892, although other means may be applied. Also extending through theface-plate B is a knob E, which is connected with the slide-plate F ofthe lock, which controls the bolt or latch G, and is in itselfcontrolled by thelugs or dogs H, operating in connection with thepermutation-plate in a manner hereinafter more fully described.

The case or frame of the lock is provided with beveled sides I, flaringrearwardly from the face-plate, and the top plate J, which may be a partof the face-plate or secured thereto, is provided with lateralextensions K, projecting beyond the beveled sides and serving as anadditional means of securing and holding the lock in position. Thebottom plateL of the lock may also be formed integral with theface-plate or separate therefrom, and is preferably rabbeted ormortised, as at. Z, to

furnish a bearing for the sides I and to keep them firmly in position,and the rear of the lock may be covered with a plate or left open, asshown. The face-plate B extends slightly beyond the beveled sides I,where they connect therewith, as shown at B, and form a rib or bearingwhich is adapted to rest upon the face of the drawer-front A. With thisconstruction it will be seen that it is only necessary in applying thelock to any drawer to cut away a portion of the upper edge of the drawerequal to the length of the look by sawing or otherwise cutting it on abevel corresponding to the inclined sides I of the lock, and it makes nodilference whether the supporting front board is the same width as thelook, as shown in Fig. 2, or is narrower or wider, as indicated indotted lines I), Fig. 2. This portion of the board being removed, thelock is slid vertically down ward into the space with the beveled sidesI closely fitting the cutaway portions, and the projecting ribs B ex-IOC tending on the outside of the board. It will be seen that the lockis firmly held in position against the forcible removal by pulling outor pushing in the bevel portions I, preventing the lock being drawnoutward and the ribs or flanges B preventing its being forced inward,and this whether the lock is of the same thickness as itssupporting-board or not.

As an additional means of securing the lock I prefer to use theextensions K of the top plate J, which can be fitted into recesses inthe face of the boardA and secured by a screw, if desired. This preventsany possible removal of the lock or slipping out of place, exceptintentionally. It will thus be seen that the lock can be madeexceedingly strong and at the same time may be readily applied withoutany special tools, and when applied it is seen red in position, exposingthe dials and bolt-operating knob ready for use, and one size orthickness of lock can be applied to various-sized drawers or boards A.

While I can use with the lock-frame above described various combinationsof dcvices,I preferably provide the disks D with serrated or saw-toothedges d, and at some point in the periphery of each disk I provide anotch D, adapted to receive the lugs or dogs H when the disks are inproper position to open the lock.

Mounted on the faceplateB is aslide-plate F, having an upward-turnedportion F and a rearward-projecting flange F and also provided with aslot or opening for the passage of the bolt or lug G. The rearwardportion of this plate is slotted or bifurcated at f, and has anupward-turned rear end F. This slide-plate is guided on the face-plateby the stud M, which is secured to the face-plate of the lock, and alsofits in the lock f of the slide-plate. This stud is also provided withan opening m, through which the rod G of the latch G slides, andinterposed between the stud and head of the latch G is a spring,

upward-turned ends 11, which are adapted to enter the notches D in thedisk D. These dogs are pivoted at h, and are normally under the stressof a spring 0, which holds their inner ends in contact with theupward-turned rear ends F of the slide-plate, so that normally they arein the position further shown in Fig. 3. \Vith this arrangement theoperation of the lock will be understood, and it will be seen that untilboth of the dials C on the face of the lock are turned to the properposition, so as to bring the notches D opposite the projections H of thelugs or dogs H, the bolt cannot be withdrawn; but when the disks areturned to the proper position by means of the knob E the slide-plate andbolt or latch can be retracted by the pressure of the spring N, and therear upward end F of this plate will tilt the lugs or dogs and allowtheir extremities to enter the notches D ofthe disk, when the drawerscan be opened.

It will be seen that in a lock adapted to a drawer there is an advantagein having the lugs or dogs at the rear of the slide-plate, as gravitytends to hold them out of their unlocking position, so that it requiresa positive movement to force them into the notches of the disk, andwhile I have shown a spring 0 which tends to assist gravity in someinstances I have found gravity to be sufficient. The saw-tooth edges ofthe disk also perform an important function, as the notches between theedges are preferably made smaller than the width of the projections H sothat these projections will not fit in between the teeth and aid inunwarranted opening of the lock, and by having two disks, each providedwith saw-tooth edges and two lugs, it is exceedingly diflicnlt tomanipulate the disks to determine their proper position for opening thelock, and it renders the combination-lock safer and less liable topicking.

What I claim is- 1. A combination-lock for drawers, comprising theface-plate carrying the dial and the beveled sides, the face-plateextending beyond the beveled sides, substantially as described.

2. The combination-lock for drawers, comprising the face-plate, thebeveled sides, the faceplate extending beyond thebeveled sides, and thetop plate having the extensions K, substantially as described.

3. The combination, with a drawer having, a portion cut away on a bevel,of the lock having beveled sides and a face-plate carrying the dial theedges of which extend beyond the bevel sides and fitting the beveledcutaway portion in the drawer, substantially as described.

4. In a permutation-lock, the combination, with the disks, each providedwith a notch, of the sliding plate, a bolt operated by the slidingplate, and the dogs arranged at the rear of the sliding plate andadapted to enter the notches in the disk, substantially as described.

5. In a permutation-lock, the combination, with the disk havingsaw-tooth edges and a notch in each disk, of the slide-plate carryingthe latch and the pivoted dogs arranged at the rear of the slide-plateand adapted to enter the notches in the disk, substantially asdescribed.

6. In a permutation-lock, the combination, with the disk, of theslide-plate carrying the latch and having an upward-turned rear end, ofthe pivoted dogs bearing on said upward end and a spring for retainingthem in position, substantially as described.

7. In a permutation-lock for drawers, the combination, with theface-plate having the dials, an operating-stud on the outside of theface, the disks mounted on the rear of the face, having saw-tooth edges,and a notch in the edges, a slide-plate carrying a latch and name tothis specification in the presence of mounted on the rear of theface-plate, the dogs two subscribing Witnesses; at the rear of theslide-plate, a top plate having an opening for the bolt, and the lateralGEORGE L. BARNEY. extension K and the sides of the lock being Witnesses:beveled, substantially as described. M. ARBUCKLE,

In testimony whereof I have signed my J.'E. MORRIS.

